Improvement in shingle-machines



UNITED STATES PATENT OFFICE.

OBEN SIODDARD, OF BUSTI, NEW YORK.

IMPROVEMENT IN SHINGLE-MACHINES.

Specification forming part of Letters Patent N0. 57,405, dated August21, 1866.

` Fig. 2 is a view of the side opposite from Fig. l.

Fig. 3 is a top view. Figs. 4, 5, 6, and 7 are sectional views, thatwill be referred to in the description.

Like letters of reference refer to like parts in the different views.

The nature of my improvement relates to an arrangement of devices forthe purpose of cutting shingles from a bolt, which bolt is fed more orless alternately at each end, so as to give the desired taper andthickness to the shingle, the said mechanism being also so arranged thatthin stuff may be cut of a uniform thickness from the bolt or log, and,by means of a mechanical arrangement connected and operating with themachine, the stud is so held or supported as to prevent its ,checking orsplitting when it is heilig cut and discharged from the machine.

A represents the frame of the machine, that is of a suitableconstruction for the operatin g parts.

B is a driving-wheel, the shaft of which is supported in the frame. Onthe shaft of this wheel is secured a crank-wheel, C, to one side ofwhich a connecting-rod, J, is pivoted, that is hung at the other end toa cutter or blade, D, as shown in Figs. l and' 2. This blade lslidesbetween upright posts I) iii a diagonal direction by the revolution ofthe crank-wheel, and is kept in place and made to move easily byfriction-rollers attached to one side of the blade, moving in guides e,arranged on the frame.

On the inside of the crank-wheel there is an eccentric, d, that a band,d', passes around, and is attached to an arm, I, that is pivoted to asliding arm, I', as indicated by the dotted lines in Fig. 1, whichslides back and forth in the frame as the crank-wheel revolves.

E is an angular lever, (seen and indicated by the dotted lines in Fig.1,) that is pivoted at c to the frame, one end of which extends into thehorizontal arm I', and the other ts into a slot cut out in a verticalarm or slide, f, as indicated.

The lower end of the slide f passes through a guide, f', secured to theframe, and to the upper end is attached a cross-piece, t. As the camturns with the crank-wheel, moving the arm I', it turns the lever,moving the slide, with ille cross-piece t, into the position indicatedin (ig. l.

Inside of the posts b of the frame are feedrollers g and h. rlhe lowerend of the roller g has its bearingin the frame, and the roller L inaslide indicated by the dotted lines h in Fig. 2. The slide is secured atthe outer end to alever or handle, H, that is pivoted at H betweenpieces j, connected to the frame.

II is the handle of the lever, by which itis moved back and forth.

g is a spring attached to the frame, the upper end of which pressesagainst the outer end of the slide, whereby the roller h is moved alongso as to hold a block between it and the other roller on the table K,(seen in Fig. 3, and

as noted by the red lines iu Figs. 2 and 3.)

The upper end of the roller h passes through an adjustable bearing, L,as indicated by the dotted lines in Fig. 1, that is pivoted at c to theframe, so that it can be turned to suit the inclination of the roller.Onthe upper end of the roller, above the frame, is secured a flange, u,and ratchet-wheel u. The other roller, g, extends up through the frame,and on the top is secured a similar lange, a, and ratchet` wheel n.

In the ratchet-wheels u n pawls z' i catch, that are pivoted in theslide m m', which move in guides o o on each side, there being lipsprojecting from the slides that fit into grooves in the guides, wherebythe slides are retained down in place as they move back and forth.

K is a head secured at the Lipper end to an arm, K, that extends upthrough the frame, and is turned at right angles at the top, in whichthere is an adj ustable screw, o. The side edges of this arm are groovedout, into which the edges of guides q q, secured to the frame, tit, bywhich the arm is kept in place as it is moved up and down.

Figs. 4 and 5 are enlarged views of the upperportion of the machine,with part of the frame removed to show more clearly some of theoperating parts. To the head K and arm K, at r, are pivoted arms t t,that are 'curved and shaped as represented in Figs. 4 and 5, and fitinto a suitable space cut out in the frame.

L is a lever hung to the arm K at r, that is shaped as shown in Figs. 4and 5, the lower part of which extends down, and from the end,projecting inward, is a pin, a, (shown in Fig. 6, which is a side viewof the head and a portion of the lever and arms.) This pin tits into andmoves in grooves 1 2 3 4, cut out in the lface of the head, as shown inFigsl 4 and 5 and indicated by'the dotted lines in Fig. 6. The grooves 12, from the top to the lower end, are inclined inward, being much deeperat the lower end than at the top, and the cross or diagonal grooves 34'are deeper at the upper than the lower end, as indicated by the dottedlines .in Fig. 6. To the center of the head is pivoted a shifter, K,shaped as represented, whereby the lever is guided in the desired mannerin the grooves, as will be described.

The slides m m are connected by a spring, l, by which they are drawnback when the pressure is removed from them as the arms t t descend. v

V is a cam secured in the frame, that turns down at right angles, and ispointed at the lower end, as shown in Fig. 7, fittingiu between the armst tl, by which they are forced apart as the arms move up.

p is a shifter attached to the frame, by which the lever L can beadjusted in or out of the, grooves, as may be desired.

The manner in which this machine, constructed as described, operates isas follows: As .the driving-wheel turns, the cutter D, by

means of the connecting-rod I and crank C,V

is moved upward into the position indicated by the dotted lines in Fig.1, and as it moves upward it comes against a roller, l', moving the headK and arm K, with the arms 15 t,

into the position indicated in Fig. l and shown in Figs. 5 and 7. As thearms t t are thus elevated the cam V causes them. to separate or spreadapart, as represented in Fig. 7. They are pivoted at the lower end tothe hea-d, and as they spread apart they move out the slides m m',which,`by means of the pawls t' fi-, turn the ratchet-wheels, wherebythe feedrollers g'h are turned in the desired manner for feeding theblock to the cutter, the block being placed on the table K, as beforestated. The feedrollers are toothed, as shown in Fig. 2, for taking holdof the block and moving it as the rollers turn.

As shingles are thicker at one end than the other, it is desirable thatthe block should be moved out more at one end than the other,alternately. To' accomplish this the lever L,

pivoted to the arm K", is made to vibrate or move up and down by thelower end moving in the grooves l 2 3 4 on the face of the head K, sothat the slides m m will alternately' come againstV the raised end ofthe lever in-v .stead of the arms t' t, and will not be moved so far;consequently the ratchet-wheel and feed-roller will not be turned somuch at one end of the block as the other, and the block will not bemoved out sofar, but will be placed diagonally under the cutter, whenthe shingle will be cut off the desired shape as the blade descends,which it does by the continued revolution of the driving-wheel.

The cross-piece t on top of the slide f, connected with a cam on thecrank-wheel, as before described, moves up with the blade D, and downalso, coming against the side of the block where the shingle is cutoft', forming a support and preventing the shingle, Sac., from being soliable to split or check as it is being cut oft'.

The mannerain which thelever L is operated so as to raise each sidealternately, for the purpose before stated, is as follows: When the armsare elevated and the lever is in the position shown in Fig. 5 the slidem will come against the lever when the arms descend, as shown in Fig. 4,and the pin a, at the lower end of the lever, will move in the verticalgroove 2 in the head, retaining` the lever in this position until :itpasses off the top into the groove 4, which is out deeper at the upperend.- As the arms and head again ascend the lever is guided in thediagonal groove 4, which tips the lever, so as to elevate the otherside, when the lever passes oft' this groove into the groove 1, which isdeep at the lower end. The lever is retained' in this position as itisguided in the groove 1 until it falls 'off into the cross-groove, 3,when it will be tipped, so as to elevate the other side, and so on, asthe" head ascends and descends. The lever guided in the vertical groovesretains each side alternately elevated, and the cross-grooves tipit up,as described.

The shifter X is for directing the lever in the diagonal vgrooves soasito tip the lever in the desired manner for turning the rollers tofeed the block more or less alternately,'as may be required for the buttand point of the shingle.

By means of the shifter p the lever L can be moved entirely out of thegrooves and disconnected with the head, when the slides will both comedirectly against the arms t' t and be moved the same distance, when theblock will be fed .equally at both ends to the cutter.

By means of the gage-screw o ,which comes down upon the top of the cam Vas the arms descend, the distance 'that the arms move vertically can beadjusted so as to determineA the stroke of the slides, that will movethe feed-rollers more or less, moving the block out so that theipieceswill be cut off thicker or thinner, as may be desired. The thickness ofthe shingles, cut tapering, can also be varied in the same manner.

What I claim as my improvement, and de sire to secure by Letters Patent,is-

1. The sliding frame f t, lever E, and arms I and l', in combinationwith eccentric d' and knife D, arranged as and `for the purpose setforth.

2. The slides m m', spring l, arms t t, and cam V, in combination withthe dogs i i', ratchet-wheels n' u', and feedrollers g h, substantiallyas and for the purpose set forth.

3. The lever L', head K', provided with vertical and diagonal grooves 12 3 4, and

shifter X, in combination with the arms tt and. cam V, substantially asand for the purpose described.

4 The set-screw o". arm K", guides q q, lever L', and arms t t, arrangedand operating in the manner and for the purpose specified.

OBEN STODDARD.

lfvitnesses t W. H. BURRIDGE,

A. W. MGGLELLAN.

